Plastic covers are seen at an area believed to contain the remains of enslaved people as archeological excavations are been conducted in Mount Vernon estate, home of George Washington, the first President of the United States, in Fairfax County, Virginia, U.S., August 15, 2019. Built using enslaved labor by George Washington's father, Augustine Washington in 1734, the house was inherited by George years later and expanded to almost 11,000 square feet with two and a half stories and a full cellar. REUTERS/Carlos Barria SEARCH "SLAVERY BUILDINGS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.